probleme compilation YACC

bonjour tout le monde.
j'ai un probleme avec yacc, il me donne l'erreur suivant:

v1_1.y:13: warning: useless keyword or type name in empty declaration
v1_1.y:13: warning: unnamed struct/union that defines no instances
v1_1.y: In function `yyparse':
v1_1.y:83: request for member `node' in something not a structure or union
v1_1.y:92: request for member `node' in something not a structure or union
v1_1.y:92: request for member `node' in something not a structure or union
v1_1.y:641: request for member `node' in something not a structure or union
v1_1.y:642: request for member `node' in something not a structure or union
v1_1.y:642: request for member `node' in something not a structure or union
gcc: v1_1.tab.o: No such file or directory

P.S. j'ai declare un type (union) node.

merci d'avance

Et le code incriminé, il faut le lire dans les entrailles de poulet ? :roll: